Piston-packing.



, No. 65|,258. Patented vlune 5, |900.

` A VA. MURRAY.

PISTON PACKING. (Application mea feb. 9,1900.) (No Model.) 2 Sheets-Sheet I.

` Patented lune 5., 1900.

2 Sheets-Sheet /N VENTO/ A. A. MURHAY. PISTON PACKING.

f No. 65,258.

(No Model.)

UNITED STATES;

FATENT OFFICE.

ALBERT A. MURRAY, OF BALTIMORE, MARYLAND.

PlsToN-PAGKING.

SPECIFICATION forming part of Letters Patent No. 651,258, dated June 5, 1900.

Application filed February 9, 1900. Serial No- 41633. (N0 mOilel-' To @ZZ whom t may concern:

Be it known that I, ALBERT A. MURRAY, of Baltimore city, in the State of Maryland, have invented a new and useful Improvement in Piston-Packing, of which the followingis a specication.

.My invention relates to packing-rings for rendering pistons and rods air or steam tight; and it has for its objecta device of this char-l acter which can be easily applied and in which the parts or sections are so connected as to be efficient in their operation.

The invention consists in certain details of construction and arrangement and Vcombination of the parts, which I shall hereinafter specifically7 describe and claim.

Reference is to be had to the accompanying drawings, forming part of this specification, in which like characters of reference indicate corresponding parts in all the views in which they occur.

Figure l is an end view of a piston-head provided with packing-rings embodying the features of my invention, the end ring being shown in side elevation with parts in dotted lines. Fig. 2 is a section of the same. Fig. 3 is a detail perspective view of one section of the ring. Fig. 4: is a section similar to Fig. 2, but illustrating a slightly-different construction. Fig. 5 is a section of a piston-head, showing a double ring made according to my invention; and Fig. 6 is a perspective view ot' a section of a double ring.

The piston-head A is` provided with a bullring B, on Whose annular ilanges B my improved, packing-rings C are adapted to tit. These are constructed in segmental sections C', approximately U-shaped in cross-section and whose sides tit snugly over the flanges B' of the bull-ring, as shown best in Fig. 2. One end of each section has riveted or otherwise suitably secured thereto a segmental plate D, which overlaps the outer side of the adjacent end of the next section and is provided with an inturned' lower end or ange D below the section, the said lange engaging the lower adjacent edge of the next section, whereby each section is caused to transmit any yielding movement to the adjacent section and a tight and yet yielding joint is formed.

A bow-shaped spring E is secured to the cross-head or horizontal member of each section of the ring by a countersunk rivet, and the free ends of said springs bear upon the annular flanges B in the space between the latter and the cross-head, as shown in the drawings, whereby to permit of the yielding ofthe ring. These springs are, of course, sufciently strong to cause the rings to bear tightly against the cylinder or other part in which the piston is located.

As shown in Fig. 4, the sections F of the rings F may be provided with end plates F2 on both sides instead of upon one, and, if desired, the inner and outer rings Gr may be made in the form of a double segmental ring, being connected integrally by the collar G', as shown in Fig. 6.

It is obvious that a single ring may be used on very narrow piston-heads insteadof *two rings, as shown in Figs. 2 and 4, or the double ring, as shown in Fig. 5.

Having thus described my invention, what I claim as new, and desire to secure byLetters Patent, is

l. The herein-described packing-ring constructed in segmental sections arranged with their ends abutting, and a segmental plate secured to the side face of each section at one end thereof and overlapping the adjacent end of the next section, each plate being formed with an inturned lower end or flange extending over the under side of the section to vwhich it is secured, and the under side of the adjacent end ot' the next section, as and for the purpose set forth.

2. The combination with the piston-head andits bull-ring formed with annular anges, of packing-rings constructed in segmental sections each section being approximately U- shaped in cross-section with its sides iitting over a ange, a plate secured to one end of each section and overlapping the side of the adjacent end of the next section, and a spring secured to the inner side of the cross-bar of each Section with free ends bearing upon the flange, as set forth.

3. A packing-ring constructed in segmental sections, and a plate secured to one end of each section and overlapping the side of the adjacent end of the next section, said IOO plates being' formed with inturned lower ends ing formed with flanges at their lowe ends engaging the under side of the :next section, projecting below theil'respeetive Sections and rd as shown and described. supporting the adjacent end of the next see- 4. A packing-ring constructed in segmention, as set forth. 5 tal sections approximately U-shaped in exoss- ALBERT A. MURRAY.

Section, :t plate secured to one end of each sec- Vitnesses: tion and overlapping the outerside of the ztd- PHILIP F. BICHEL5 jacent end of the next section, said plates be- VILSON \V. MURRAY. 

